I am using Firefox 19 Microsoft Hotmail/ Outlook no spell check facility

I like using Firefox, but in order to utilise a spell checking facility, I have to use Internet Explorer in order to have an automatic spell checking facility when utilising Microsoft Hotmail in Outlook. I have seen on Google search. The BLUE bar when composing a new email has the words spell checker near where is says SAVE DRAFT. With Firefox19 I have looked at Microsoft Community for the answer. I tried the suggestion use Windows button+c nothing happened. I am sure if Internet Explorer can provide this why is it not possible with Firefox.